From 13 October 2025, access to Companies House WebFiling will require GOV.UK One Login. This replaces the older Government Gateway sign-in and is part of the wider move towards a single, more secure login across government services.

When you next log into WebFiling after that date, you will be prompted to connect your existing account to GOV.UK One Login. Without doing so, you will not be able to file company documents. This shift follows the earlier transition of the “Find and update company information” service in 2024.

The new login system provides additional benefits. It brings stronger security through two-factor authentication, reducing the risk of fraud and misuse. It also allows you to use one set of login details for multiple government services, cutting down on the need to manage different usernames and passwords. Over time, GOV.UK One Login will replace all other government login systems.

To prepare for the change, users should check that their WebFiling email address is up to date and accessible. If they also use the “Find and update company information” service, they should ensure both accounts use the same email address. It may be worth creating a GOV.UK One Login in advance using that same email. Companies House is also advising that users review and clean up their “My companies” list to remove any businesses they no longer file for.

Looking further ahead, identity verification becomes compulsory from 18 November 2025 for all new and existing directors and Persons with Significant Control. This can be completed voluntarily now via GOV.UK One Login or, alternatively, through an authorised agent.

In short, from mid-October WebFiling accounts must be connected to GOV.UK One Login. Preparing early will help avoid delays and ensure users are ready for the new identity checks that follow in November.